package org.apache.maven.execution;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.util.Collections;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArrayList;

import org.apache.maven.project.DependencyResolutionResult;
import org.apache.maven.project.MavenProject;

/** @author Jason van Zyl */
public class DefaultMavenExecutionResult implements MavenExecutionResult {
  private MavenProject project;

  private List<MavenProject> topologicallySortedProjects = Collections.emptyList();

  private DependencyResolutionResult dependencyResolutionResult;

  private List<Throwable> exceptions = new CopyOnWriteArrayList<Throwable>();

  private Map<MavenProject, BuildSummary> buildSummaries;

  public MavenExecutionResult setProject(MavenProject project) {
    this.project = project;

    return this;
  }

  public MavenProject getProject() {
    return project;
  }

  public MavenExecutionResult setTopologicallySortedProjects(List<MavenProject> topologicallySortedProjects) {
    this.topologicallySortedProjects = topologicallySortedProjects;

    return this;
  }

  public List<MavenProject> getTopologicallySortedProjects() {
    return null == topologicallySortedProjects ? Collections.<MavenProject> emptyList() : topologicallySortedProjects;
  }

  public DependencyResolutionResult getDependencyResolutionResult() {
    return dependencyResolutionResult;
  }

  public MavenExecutionResult setDependencyResolutionResult(DependencyResolutionResult dependencyResolutionResult) {
    this.dependencyResolutionResult = dependencyResolutionResult;

    return this;
  }

  public List<Throwable> getExceptions() {
    return exceptions == null ? Collections.<Throwable> emptyList() : exceptions;
  }

  public MavenExecutionResult addException(Throwable t) {
    exceptions.add(t);

    return this;
  }

  public boolean hasExceptions() {
    return !getExceptions().isEmpty();
  }

  public BuildSummary getBuildSummary(MavenProject project) {
    return (buildSummaries != null) ? buildSummaries.get(project) : null;
  }

  public void addBuildSummary(BuildSummary summary) {
    if (buildSummaries == null) {
      buildSummaries = new IdentityHashMap<MavenProject, BuildSummary>();
    }
    buildSummaries.put(summary.getProject(), summary);
  }

}
